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Simplifying 42r + 48 = 120 Reorder the terms: 48 + 42r = 120 Solving 48 + 42r = 120 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-48' to each side of the equation. 48 + -48 + 42r = 120 + -48 Combine like terms: 48 + -48 = 0 0 + 42r = 120 + -48 42r = 120 + -48 Combine like terms: 120 + -48 = 72 42r = 72 Divide each side by '42'. r = 1.714285714 Simplifying r = 1.714285714
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